a="123456789"
print(len(a))#9
print(len('12345678'))#8

print('---------')
b='G'
print(ord(b))#71
print(ord('g'))#103
print('---------')
c=71
print(chr(c))#G
print(chr(98))#b
print('---------')
d=5
print(eval('d*4'))#20